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233925 (2009 UL2)
Classification: Jupiter Trojan          SPK-ID: 2233925
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485442819417987 9.5423e-08  
a 5.248985536516431 2.7179e-07 au
q 4.469278749071711 6.8957e-07 au
i 13.49743265761701 7.0148e-06 deg
node 268.7969749944446 4.2507e-05 deg
peri 148.1344252400606 5.8176e-05 deg
M 306.5263127443312 4.8622e-05 deg
tp 2459652.952834111392
(2022-Mar-14.45283411)
0.00062915 TDB
period 4392.497176360333
12.03
0.00034117
9.341e-07
d
yr
n .08195793543988106 6.3657e-09 deg/d
Q 6.02869232396115 3.1217e-07 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      7902 days (21.63 yr)  
   first obs. used      1998-12-14  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54111  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 16:20:44  

Additional Information
 Earth MOID = 3.49093 au 
 Jupiter MOID = .573387 au 
 T_jup = 2.923 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4   n/a MPO454692  
diameter diameter 16.303 km 0.682 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.080   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

233925 (2009 UL2)          Discovered 2009-Oct-18 by Tozzi, F. at Tzec Maun
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

Alternate Designations
 2009 UL2 = 1998 XM43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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